When is the best time to fog

Mosquito fogger is a device that is used to repeal or terminate insects, mostly mosquitoes from backyard, garden, patio and other areas. After you have discovered areas around your house where mosquitoes are living, next thing is to choose the most effective time for fogging. There are few important things to note about when it’s best to fog and when you should avoid fogging for safety or efficiency reasons.

When is the best time to fog

The best time to fog is when activity of mosquitoes is the highest. Most mosquitoes are active in evenings and only few species are active during day. By general, mosquitoes don’t prefer sunlight and are looking for shady areas to hide during the day. The best time for fogging is in early mornings and evenings around dusk. Mostly fogging is done during evenings because of following reasons:

  • At evening hours and around dusk the day temperature has lowered and most of the time temperature closer to ground is going to be higher than that in air. This allows the fog from an insect fogger to settle on the ground more easier and fog is going stay on the area for longer time.
  • At this time wind is usually died down, which is very important for a successful fogging session.
  • Most good insects like butterflies and bees are active at daytime and their activity has ended before the late evening hours and dusk. Fogging at this time won’t harm these good species as much, because most insecticides will not only kill mosquitoes but other small bugs and insects that may do good job for your garden and biosphere around the fogging area.

fogging in evening

It is also important to fog in low wind or ideally in windless conditions. Low wind conditions are vital for a successful fogging season, because particles of the fog made by an thermal or cold fogger are very small and can be easily moved by a tiny wind gust. Low wind or windless conditions will allow the fog to stay on the area fogged for a longer period of time, which results in more terminated mosquitoes and will also repeal the mosquitoes from that area for longer time. For example if you fog a bush in higher wind conditions, the fog will immediately get blown away from the bush and low number of particles will settle in that area. This is why fogging in low wind or windless conditions is so vital for great success in terminating majority of mosquitoes in the area.

When fogging should be avoided

There can also be some times when you most not fog As mentioned above, it is not advisable to fog in higher wind conditions and it is forbidden to fog in very gusty wind conditions, because of following reasons:

  1. Fogging in gusty wind makes the fogging process ineffective. Insecticide particles cannot reach the fogging area, because wind blows them away immediately after they have been sprayed out of the nozzle of a fogger. By fogging in high wind conditions you will more likely waste large amount of insecticide rather than making a visible impact on the mosquito population in the area you’re fogging.
  2. High wind gusts can make fogging uncontrollable and the fog can be blown to areas you’re not willing to fog. This may be harmful not only for plants and good insects but also for children, pets and even yourself. This is why FOGGING IN HIGH WIND SHOULD BE AVOIDED AND CAN EVEN BE DANGEROUS FOR THE ENVIRONENT.

If you are fogging in low wind conditions remember to protect your skin from fog getting on it, because most insecticides contain chemicals which can be bad for your skin. Also fog in direction of wind and do not stand in crosswind or else all the fog will get blown back to you. It is not advisable to use a fogger in very high temperatures.

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Main website editor at InsectCop.net. Expert in mosquito foggers!


  1. That’s good to know that windless or low wind conditions are the best times to fog an area because both cold and thermal fogger particles are very small. I’ve got a problem with mosquitoes, and they are always swarming my home and getting into every crack. Everything I’ve tried before hasn’t worked very well, so I’ll have to find someone who’ll come out and use fogging at my house.

  2. Thanks for the interesting tips on when is the best time to fog! it’s interesting to learn that most mosquitoes are active in the evening. I’ve thought that they were day creatures, I guess I was wrong. I’m glad that you mentioned that in the morning good insects might be affected that’s why it is most advisable to be done in the evening. I’ll do my best to remember your tips and put them into practice.

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